21st joint workshop on electron cyclotron emission (ECE) and electron cyclotron resonance heating (ECRH)

Session

Gyrotrons

20 Jun 2022, 16:20

B72 - Amphitheatre (ITER Organization )

Conveners

Gyrotrons

• John Jelonnek (Karlsruhe Institute of Technology)

134. New developments of megawatt power gyrotrons in Russia

Grigory Denisov (Institute of Applied Physics)

20/06/2022, 16:20

Invited

43. Construction Status of a 110 GHz, 1 MW Gyrotron with Corrugated Waveguide Output

Dr Robert Lawrence Ives (Calabazas Creek Research, Inc.)

20/06/2022, 16:50

Oral

Assembly is in progress on a 110 GHz, 1 MW gyrotron with HE11 mode output in corrugated waveguide. This is a significant improvement over conventional gyrotrons with Gaussian mode output. The gyrotron will connect directly to corrugated waveguide transmission lines without a requirement for a mirror optical unit. This results in higher mode purity and reduced RF loss, in addition to a major...

60. 1.5 MW CW RF Loads for Gyrotrons

Robert Lawrence Ives (Calabazas Creek Research, Inc.)

20/06/2022, 17:10

Oral

Abstract attached

50. Progress on the Frequency Stabilization of MW-Class 140 GHz Gyrotrons at W7-X with a Phase-Locked Loop

Laurent Krier (KIT)

20/06/2022, 17:30

Oral

At Wendelstein 7-X (W7-X), a first proof-of-principle frequency stabilization system for megawatt-class 140 GHz gyrotrons was implemented with an off-the-shelf Phase-Locked Loop (PLL) [1]. To overcome the limitation of this first basic PLL system, a new digital PLL system was implemented, which allows a much more flexible change in operating parameters and can be easily integrated into the...